A fluid testing arrangement includes an adaptor/connector 16 which couples to a service pipe 11 to allow fluid passage to continue from the main pipe 10. A catheter 18 is passed through the supplementary connection 17 and through the bore of the adaptor into the service pipe 11 until it reaches the main...http://www.google.com.au/patents/US6199432?utm_source=gb-gplus-sharePatent US6199432 - Fluid pressure testing
